The terminal of low voltage power capacitor

专利摘要:
The present invention relates to a terminal used in a low voltage power capacitor, and the terminal assembly (1-1), which is integrally formed with an insulating plate, is fixed to a fixed plate (40) mounted on the low pressure advanced capacitor case (41). 40) Hexagonal or square necks are formed in the fastening bolt 22 and the fastening holes of the insulating plate 20 are formed in a quadrangular shape so that the rotation can be suppressed. In the cap that protects the fixing nut 10-1 between the outer lead wire fastening portion 42 and the insulator 8 formed by fastening to the upper end of the assembly, a hole is formed without forming a screw portion at the center to fasten the terminal assembly. To facilitate assembly, grooves are formed on the bolt heads of the fastening bolts 22 so that the lead wires 5 are welded to the bolt heads more reliably.
公开号:KR20020027845A
申请号:KR1020000058559
申请日:2000-10-05
公开日:2002-04-15
发明作者:조현욱
申请人:조현욱；
IPC主号:

专利说明:

The terminal of low voltage power capacitor
[22] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal for use in a low voltage power capacitor, and more particularly to a terminal for a low voltage expansion capacitor which is improved to prevent rotation of the terminal assembly when the device lead wire is tightened to the terminal bolt.
[23] In more detail, it relates to a terminal to be mounted on the low pressure phase condenser case 41, and a hexagonal or square neck is attached to the fastening bolt 22 so that rotation can be suppressed when the terminal assembly 1-1 is mounted on a fixed plate. And the fastening hole of the insulating plate 20 is formed in a rectangular shape to prevent the terminal assembly from rotating on the fixed plate, and between the outer lead wire fastening portion 42 and the insulator 8 formed by fastening to the upper end of the terminal assembly. In the cap protecting the fixing nut (10-1), the through hole is formed without forming a screw in the center so that the assembly of the terminal assembly can be performed more easily. It is formed so that the lead wire 5 is welded more firmly to the bolt head.
[24] Conventional low pressure phase capacitor terminal is as shown in Figures 1a and 1b, Figure 1a is an exploded perspective view showing the terminal assembly (1) of the conventional low pressure phase enhancement capacitor terminal, Figure 1b is a conventional low voltage A cross sectional view showing the assembling of a terminal assembly 1 of a terminal for an advanced capacitor.
[25] The terminal for the low-voltage phase-capacitor has three terminal assemblies (1) mounted on a thick and narrow lower insulating plate (2) and a thin and wide upper insulating plate (3).
[26] The terminal assembly 1 has a lower insulating plate with three circular through holes 2-1 formed in the lower insulating plate 2 and three circular through holes 3-1 formed in the upper insulating plate 3 coincident with each other. Insert the clip (4) at the lower end of the (2) and fasten the bolt (6) to the through holes (2-1) (3-1) (4-1) of the clip (4) and the upper and lower insulating plates (2) and (3). ), Insert the rubber packing (7) into the bolt rod (6-2) protruding upward from the bottom, and then insert the insulator (8) and the washer (9) sequentially and tighten the fixing nut (10) to seal the rubber packing. (7) is to fill the space formed in the fixing plate 40, the insulator 8 and the fastening bolt (6), tighten the cap 11 to the protruding bolt rod (6-2) and then the bolt rod (6) -2), the fixing nut 10, the washer 12, the spring washer 13, and the fixing nut 10-2 are inserted to form an external lead wire tightening part 42 in order.
[27] The clip 4 is formed in a W shape and is formed by opening a circular through hole 4-1 in the groove portion 4-3 formed at the center thereof, and wings 4-2 of the edge are formed at both ends of the lower insulating plate 2. It is formed somewhat higher than the central through-hole (4-1) portion to surround the.
[28] The fastening bolt 6 is composed of a bolt head 6-1, a bolt rod 6-2 and a threaded portion 6-3. The bolt head 6-1 has a narrow and elongated shape and the clip 4 The bolt head 6-1 of the fastening bolt 6 is fastened to the clip 4 when the fastening bolt 6 is fastened to the clip 4. The rotation is prevented by being caught in the recessed portion 4-3, and the three clips 4 are fixed to the lower insulating plate 2 so as to be fixed to one lower insulating plate 2 of the three terminal assemblies 1. As a result, the terminal assembly 1-1 does not rotate.
[29] The insulator 8 has a through hole 8-1 formed at the center thereof, and a multistage step 8-2 formed at the top thereof, and the washer 9 is fitted to the multistage step 8-2, and a recess at the bottom thereof. This is formed so that the rubber packing 7 is more firmly fused.
[30] The cap 11 has a cap shape and a shape in which a central portion is formed in a circular shape, and the central circular drilling portion is formed by screwing a screw portion 11-1 to rotate the cap 11 when assembling the terminal assembly 1. After fastening and assembly, the fixing nut 10-1 serves to protect it from being released.
[31] The outer lead wire fastening portion 42 fastens the fixing nut 10 to the bolt rod 6-2 to the upper side of the cap 11 and inserts the two washers 12 into the upper side of the fixing nut 10. The spring washer 13 is inserted into the upper side of the 12, and the fixing nut 10-2 is fastened to the upper side of the spring washer 13. The outer lead wire is sandwiched between two washers 12 to be fixed. .
[32] The lead wire 5 is welded to the terminal assembly 1 fastened and assembled as described above, and the lead wire 5 is welded to the plane of the clip 4 of the terminal assembly 1 to form a welded portion 5-1. Is applied to the lead wire 5 and is passed to the external lead wire tightening part through the fastening bolt 6 via the clip 4.
[33] That is, in the conventional terminal assembly 1 as described above, a separate clip 4 must be manufactured in order to suppress rotation of the fastening bolt 6, and the clip 4 and the lower insulating plate 2 are held by one hand even when fastening and assembling. At the same time, the rubber packing 7 had to be inserted with the other hand, and the cap 11 had to be tightened while rotating by screwing the threaded portion 6-3 of the fastening bolt 6, which is very inconvenient and cumbersome. Pointed out.
[34] In addition, it is necessary to weld and fix the lead wire 5 to the bolt head 6-1 of the fastening bolt 6 to reduce the loss due to resistance, but the width of the bolt head 6-1 is narrow, which is inevitable of the clip 4. The welding was performed on the plane so that the current was transmitted to the fastening bolt 6 through the clip 4, thereby causing a current loss due to the resistance generated between the clip 4 and the fastening bolt 6, and the welding part 5 Was formed in the plane of the clip (4) has a problem that the weldability is low due to the external impact or falling off by a continuous fine vibration, there is a problem that can not flow the current more effectively.
[35] The present invention is to provide a terminal for a low-voltage advanced capacitor further improved to solve the above problems and closing.
[36] The present invention constitutes three terminal assemblies on the insulating plate and is fixed to the fixing plate and mounted on the capacitor case, and the terminal assembly is assembled by fastening the insulator, cap, fixing nut and washer to the screw projecting to the upper part by inserting the fastening bolt from the bottom of the insulating plate. In order to configure the external lead tightening portion,
[37] To prevent the terminal assembly from rotating on the insulating plate, hex bolts are formed on the fastening bolts, and hex or square holes are formed on the insulating boards.The bolt heads of the fastening bolts form grooves to increase the weldability of the lead wires, thereby fixing them more firmly. The purpose of the present invention is to provide a terminal for a low-voltage phase-capacitor that can form a hole in the center of the cap so that the external lead wire fastener can be configured more easily and quickly.
[38] Another object of the present invention is to use a holder having a hexagonal or square hole and a protrusion formed in place of the lower insulating plate, and forming a binding hole corresponding to the protrusion of the holder on the upper insulating plate to directly assemble the holder to the upper insulating plate to assemble the assembly process. The present invention provides a terminal for a low voltage phase capacitor that can be simplified to improve productivity.
[39] In the above and other objects of the present invention, three through holes are formed in the upper and lower insulating plates, and the three terminal assemblies are mounted on the insulating plate, but the terminal assemblies are fitted with the fastening bolts upward from the bottom of the through holes of the upper and lower insulating plates. Insert the fixing plate and the rubber packing (7) into the bolt rod protruding into the bolt rod. Then, insert the insulator (8) into the bolt rod, tighten the washer (9) and the fixing nut (10-1), and then put the cap on the cap. In which the external lead wire fastening portion 42 is formed on the threaded portion protruding upward, the upper and lower insulating plates and the fastening bolts are provided with rotation preventing means, and the rotation preventing means are hexagonal or square holes in the lower insulating plate 20. (21), the fastening bolt 22 forms a groove (22-1) in the bolt head, and forms a square neck (22-2) to the upper side of the bolt head and the upper side of the square neck (22-2) The bolt 22-2 and the screw 22-2 to form a fastening bolt 22. The square neck 22-2 is inserted into the hexagonal or square hole 21 of the lower insulating plate 20, and the rotation preventing means forms a hexagonal or square hole 25 in the center of the holder 24, Protruding parts 26 and forming through holes 30-1 in the upper insulating plate 30, and a plurality of cutouts 30-2 around the through holes 30-1 and the protruding parts 26. The holder 24 is formed to be drilled to correspond to the upper insulating plate 30, and the cap 23 has a cap shape and shape in which the center is formed in a circular shape, and the center circular hole is larger than the screw portion 22-4. A through hole 23-1 is formed, and the fastening bolt 22 is inserted into the upper and lower insulating plates 3, 20 and 30 in the upward direction from below and the bolt rod 22-3 and the threaded portion 22 protruding upward. -4) Insert the fixing plate 40, the rubber packing (7), the insulator (8) and the washer (9), tighten the fixing nut (10-1) to securely close the cap to the upper side of the fixing nut (10-1) Putting on (23) It is achieved by the terminal for low-pressure phase-capacitor, characterized in that it comprises what constitutes the external lead wire tightening portion 42 above the cap 23.
[1] Figures 1a and 1b is an exploded perspective view of a terminal for a conventional low-voltage capacitor
[2] Cross section
[3] 2A and 2B are an exploded perspective view of a terminal for a low-voltage phase capacitor according to the present invention;
[4] Cross section
[5] Figure 3 shows another embodiment of a terminal for a low-voltage phase capacitor according to the present invention
[6] Exploded perspective view.
[7] ※ Explanation of code about main part of drawing ※
[8] 1, 1-1, 1-2: terminal assembly 2, 20: lower insulation plate
[9] 3, 30: upper insulation plate
[10] 2-1, 3-1, 4-1, 8-1, 23-1, 30-1: Through 4: Clip
[11] 5: lead wire 5-1: welded portion
[12] 6, 22: tightening bolt 6-1: bolt head
[13] 6-2, 22-3: Bolt rod 6-3, 11-1, 22-4: Threaded portion
[14] 7: rubber packing 8: insulator
[15] 8-2: multi-stage step 9, 12: washer
[16] 10, 10-1, 10-2: fixing nut 11, 23: cap
[17] 13: spring washer 21, 25: square hole
[18] 22-1: Groove 22-2: Square Neck
[19] 24: holder 26: protrusion
[20] 30-2: cutout 40: fixing plate
[21] 41: capacitor case 42: external lead wire tightening part
[40] The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.
[41] Figures 2a and 2b is a specific embodiment according to the present invention, Figure 2a is an exploded perspective view showing the disassembled terminal for the low-pressure phase capacitor according to the present invention, Figure 2b is shown by assembling the terminal for the low-pressure phase capacitor 3 is an exploded perspective view showing another embodiment of a terminal for a low-voltage capacitor according to the present invention, in which a holder is applied instead of a lower insulating plate.
[42] The terminal for low-pressure phase-capacitor according to the present invention is to form a through hole of the insulating plate in a square and the fastening bolt to form a hexagonal or square wood to prevent the fastening bolt from rotating in the insulating plate and the fixing plate, to weld and fix the lead wire directly to the fastening bolt It is a well known feature.
[43] As shown in FIGS. 2A and 2B, a terminal for a low-voltage high-capacity capacitor according to the present invention includes three terminal assemblies 1-1 overlapping an upper insulating plate 3, a lower insulating plate 30, and a fixing plate 40. The terminal assembly 1-1 overlaps the upper insulating plate 3 and the lower insulating plate 20, and the fastening bolt 22 is inserted upward from the bottom to fix the bolt plate 22-3 to protrude upward. 40), rubber packing (7), insulator (8) and washer (9) are inserted and tightly fixed by tightening the fixing nut (10-1), cap (23) on the upper side of the fixing nut (10-1) and cap The external lead wire fastening part 42 is included above the 23, and the low voltage phase capacitor terminal is achieved.
[44] The lower insulating plate 30 forms three hexagonal or square holes 21, and the fastening bolts 22 form grooves 22-1 formed with grooves in the bolt heads, and a square wood ( 22-2) was formed, and the bolt rod 22-3 and the threaded portion 22-4 were formed above the square neck 22-2.
[45] The cap 23 has a cap shape and shape in which the central portion is circularly drilled, and the central circular drilling portion forms a through hole 23-1 larger than the screw portion 22-4 so that the cap 23 is screwed in the screw portion 22-4. It was made to fit easily when it inserted in.
[46] When the assembly of the terminal assembly 1-1 is completed, the lead wire 5 is welded to the groove 22-1 of the fastening bolt 22 to form the welded portion 5-1. The material (lead) is filled in the groove of the groove 22-1 to increase the bonding strength.
[47] The external lead wire fastening portion 42 and the insulator 8 have the same configuration as the terminal for a conventional low voltage capacitor, and a detailed description thereof will be omitted.
[48] Hereinafter will be described the assembly process and operation of the terminal for a low-pressure phase capacitor which is an embodiment according to the present invention.
[49] When the fastening bolt 22 is inserted upward from the bottom in the state where the upper insulating plate 3, the lower insulating plate 20, and the through hole 3-1 of the fixing plate 40 coincide with the hexagonal or square hole 21, The square neck 22-2 of the bolt 22 is inserted into the hexagonal or square hole 21 of the lower insulating plate 20 and temporarily fixed without rotation.
[50] As described above, the rubber packing 7 and the insulator 8 are inserted into the bolt rod 22-3 protruding upward while the fastening bolt 22 is temporarily fixed to the insulating plate, and then the washer 9 is inserted and then fixed. When heat is applied to the rubber packing 7 while tightening the nut 10-1, the rubber packing 7 is pressed to fix the upper and lower insulating plates 3, 20, the fixing plate 40, and the insulator 8 integrally. , The fastening bolt 22 and the fixing plate 40 are insulated by the upper and lower insulating plates 3 and 20 and the rubber packing 7 to be airtight.
[51] Insert the cap 23 into the screw portion 22-4 protruding upward of the insulator 8, and the fixing nut 10, the two washers 12, and the spring washer 13 are fixed to the upper portion of the cap 23. The nut 10-2 is fastened to the screw portion 22-4 in sequence to form an external lead wire tightening part 42 to wind the external lead wire between the washer 12 and the come 12, and the fastening nut fastened to the uppermost side. Tighten (10-2) to fix the external lead wire.
[52] The terminal assembly 1-1 fastened and assembled as described above is fitted to the capacitor case 41 while being mounted on the fixing plate 40, thereby discharging the current inside the capacitor to the outside. The current inside the capacitor is energized to the fastening bolt 22 through the lead wire 5, and the current through the fastening bolt 22 is transmitted to the external lead wire fastener 42 and fixed to the external lead wire fastener 42. It is to be discharged by the lead wire.
[53] Figure 3 shows another embodiment of the anti-rotation means in the terminal assembly (1-2) of the terminal for low-voltage phase-capacitor according to the present invention, by providing a holder 24 to the upper insulating plate 30, the terminal assembly (1- 2) is configured.
[54] That is, the holder 24 has a hexagonal or square hole 25 in the center in the shape of a leaf, and protrudes the protrusions 26 corresponding to the rectangular cutouts on the upper side of the holder. A through hole 30-1 was formed, and a plurality of cutouts 30-2 were formed on the outer circumference of the through hole 30-1, but the hole 30-1 was formed to be coupled to the protrusion 26 of the holder 24.
[55] Hereinafter, an operation state in a state in which the terminal assembly 1-2 is mounted on the insulating plate and the fixing plate 40 according to another embodiment of the present invention will be described.
[56] When the protrusion 26 of the holder 24 is inserted into the binding hole 30-2 of the upper insulating plate 30, the holder 24 is fixed to the upper insulating plate 30, and the upper insulating plate 30 and the holder 24 are fixed. Is inserted into the hexagonal or square hole 25 upward from the bottom of the fastening bolt 22, the square neck 22-2 of the fastening bolt 22 is inserted into the hexagonal or square hole 25, the upper insulating plate ( The fastening bolt 22 is temporarily fixed to the 30 and the holder 24.
[57] The rubber packing 7 and the fixing plate on the bolt rod 22-3 and the threaded portion 22-4 protruding upward while the fastening bolt 22 is fixed to the upper insulating plate 30 and the holder 24 as described above. Inserting the 40 and the insulator 8 and tightening the fixing nut 10-1 to fix the cap 23 and the cap 23, and to configure the external lead wire tightening portion is an embodiment shown in Figure 2a and 2b The description is the same as the description thereof will be omitted.
[58] In addition, the lead portion 5-1 is welded to the groove 22-1 of the fastening bolt 22 by the terminal assembly 1-1 mounted on the upper insulating plate 30 and the fixing plate 40. ) Is also the same configuration as the embodiment shown in Figures 2a and 2b and the process of discharging the internal current of the capacitor to the outside is also the same, the current is conducted to the fastening bolt 22 through the lead wire (5) Then, the current conducted to the fastening bolt 22 is discharged by the external lead wire fixed to the external lead wire fastening part 42.
[59] As described above, the terminal for low pressure phase capacitors according to the present invention can be more easily manufactured than the terminal for low voltage phase capacitors in the fastening assembly process, and particularly, a fastening bolt without using a separate clip 14 ( 22, a square neck 22-2 is formed, and hexagonal or square holes 21 and 25 are formed in the lower insulating plate 20 and the holder 24, and then assembled. ) Can be temporarily fixed to the insulating plate and the fixing plate 40 without rotation, and thus can be assembled more efficiently. By forming the groove 22-1 in the bolt head of the fastening bolt 22, the material is grooved 22-1. It is inserted into the groove of the) to increase the bonding strength of the solder can be prevented from falling off the lead wire (5).
[60] In addition, the cap 23 is inserted into the screw portion 22-4 for the purpose of preventing loosening of the fixing nut 10-1, and does not form the screw portion 11-1 like the conventional cap 11. By forming the through hole 23-1 to be somewhat larger than the screw portion 22-4, it is only necessary to insert it, so that the fastening and assembly can be performed more efficiently.
[61] Although the present invention has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various modifications and changes are possible within the scope of the technical concept of the present invention, and in particular, it is transformed into a polygon such as a square or hexagonal neck formed on the fastening bolt 22. It is natural that the appended claims are appended with simple modifications and variations, such as deformation into polygons such as square holes or hexagonal holes.

权利要求:
Claims (5)
[1" claim-type="Currently amended] Three holes are formed in the upper and lower insulating plates, and the three terminal assemblies are mounted on the insulating plate and the fixing plate 40, and the terminal assembly inserts the fastening bolts upward from the bottom of the through holes of the upper and lower insulating plates and protrudes upward. Insert the fixing plate 40 and the rubber packing 7 into the rod to fix it tightly. Then insert the insulator 8 into the bolt rod, tighten the washer 9 and the fixing nut 10-1, and then put the cap on the cap. In the configuration of the external lead wire tightening portion 42 in the threaded portion projecting upward, the upper and lower insulating plates 3, 20, 30 and the fastening bolt 22 are provided with rotation preventing means, and the cap 23 The central circular drilled portion forms a through hole 23-1 larger than the threaded portion 22-4 of the fastening bolt 22 by forming a cap shape and a shape in which the center of the silver is circularly drilled. 4) by inserting the cap 23 to cover the fixing nut 10, characterized in that Terminals for capacitors.
[2" claim-type="Currently amended] The method of claim 1, wherein the rotation preventing means forms a square hole 21 in the lower insulating plate 20, the fastening bolt 22 forms a groove (22-1) in the bolt head, the square neck to the upper side of the bolt head (22-2) and the bolt bar (22-3) and the threaded portion (22-4) to the upper side of the square neck (22-2) to form a square neck (22-2) of the fastening bolt 22 A terminal for a low-pressure phase capacitor, characterized in that it is configured to be inserted into the square hole (21) of the insulating plate (20).
[3" claim-type="Currently amended] The method of claim 1, wherein the anti-rotation means forms a square hole 25 in the center of the leaf-shaped holder 24, and protrudes a plurality of protrusions 26 to fit into the rectangular cutout, and to the upper insulating plate 30 The through hole 30-1 is formed, but a plurality of fastening holes 30-2 are formed to correspond to the protrusions 26 around the through hole 30-1 so that the holder 24 is formed on the upper insulating plate 30. A terminal for low pressure phase capacitors, characterized in that it is to include a fixed.
[4" claim-type="Currently amended] The method of claim 1, wherein the rotation preventing means forms a hexagonal hole in the lower insulating plate 20, the fastening bolt 22 forms a groove (22-1) in the bolt head, and forms a hexagonal neck above the bolt head It characterized in that it is configured to form a bolt rod (22-3) and a screw portion (22-4) to the upper side of the hexagonal neck so that the hexagonal neck of the fastening bolt 22 is fitted into the hexagonal hole of the lower insulating plate (20) Terminals for low voltage boost capacitors.
[5" claim-type="Currently amended] The method of claim 1, wherein the anti-rotation means forms a hexagonal hole in the center of the leaf holder holder 24, and protrudes a plurality of protrusions 26 to fit into the rectangular cutout portion, the through hole 30 in the upper insulating plate 30 -1) to form a plurality of binding holes (30-2) around the through hole (30-1) so as to correspond to the protrusion 26 to secure the holder 24 to the upper insulating plate (30) Low voltage phase capacitor terminal characterized in that it comprises.

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同族专利:

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公开号 | 公开日

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KR100381281B1|2003-04-26|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2000-10-05|Application filed by 조현욱

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2000-10-05|Priority to KR10-2000-0058559A

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2002-04-15|Publication of KR20020027845A

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2003-04-26|Application granted

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2003-04-26|Publication of KR100381281B1

优先权:

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申请号 | 申请日 | 专利标题

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KR10-2000-0058559A|KR100381281B1|2000-10-05|2000-10-05|The terminal of low voltage power capacitor|